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Posted to issues@hbase.apache.org by "Hudson (Commented) (JIRA)" <ji...@apache.org> on 2012/04/05 04:53:21 UTC
[jira] [Commented] (HBASE-5535) Make the functions in task monitor
synchronized
[ https://issues.apache.org/jira/browse/HBASE-5535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246960#comment-13246960 ]
Hudson commented on HBASE-5535:
-------------------------------
Integrated in HBase-0.92-security #104 (See [https://builds.apache.org/job/HBase-0.92-security/104/])
HBASE-5535 Make the functions in task monitor synchronized (Revision 1307281)
Result = FAILURE
stack :
Files :
* /hbase/branches/0.92/CHANGES.txt
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/monitoring/TaskMonitor.java
> Make the functions in task monitor synchronized
> -----------------------------------------------
>
> Key: HBASE-5535
> URL: https://issues.apache.org/jira/browse/HBASE-5535
> Project: HBase
> Issue Type: Bug
> Reporter: Liyin Tang
> Assignee: Liyin Tang
> Fix For: 0.92.2, 0.94.0
>
> Attachments: HBASE-5535-Make-the-functions-in-task-monitor-synchr-2012-03-08_16_33_42.patch
>
>
> There are some potential race condition in the task monitor. So update the functions in task monitor to be synchronized.
> The example of the problem caused by the race condition:
> ERROR org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Cache flush failed for region
> java.lang.IndexOutOfBoundsException: Index: 1745, Size: 1744
> at java.util.ArrayList.add(ArrayList.java:367)
> at java.util.SubList.add(AbstractList.java:633)
> at java.util.SubList.add(AbstractList.java:633)
> at java.util.SubList.add(AbstractList.java:633)
> at java.util.SubList.add(AbstractList.java:633)
> at java.util.SubList.add(AbstractList.java:633)
> at java.util.AbstractList.add(AbstractList.java:91)
> at org.apache.hadoop.hbase.monitoring.TaskMonitor.createStatus(TaskMonitor.java:74)
> at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:1139)
> at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:260)
> at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:234)
> at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.run(MemStoreFlusher.java:146)
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